High 8.7Published Mar 24, 2026

CVE-2026-23921Blind, read-only SQL injection in Zabbix API via sortfield parameter

Updated under an hour ago (Oct 27, 2026, 5:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

A low privilege Zabbix user with API access can exploit a blind SQL injection vulnerability in include/classes/api/CApiService.php to execute arbitrary SQL selects via the sortfield parameter. Although query results are not returned directly, an attacker can exfiltrate arbitrary database data through time-based techniques, potentially leading to session identifier disclosure and administrator account compromise.

CVSS: 8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Zabbix
NVD analysis: Analyzed
Record last updated: Mar 25, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Zabbix Zabbix zabbix:zabbix (from the name)	from 7.0.0 through 7.0.21; fixed at 7.0.22; from 7.2.0 through 7.2.14; fixed at 7.2.15; from 7.4.0 through 7.4.5; fixed at 7.4.6	CNA record
zabbix zabbix zabbix:zabbix	from 7.0.0 before 7.0.22; from 7.2.0 before 7.2.15; from 7.4.0 before 7.4.6	NVD

References

References

https://support.zabbix.com/browse/ZBX-27640	vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.